Foundation is a map that was released along with Sanctuary in Content Pack 4 for Call of Duty: Modern Warfare 3 on April 10, 2012 for Call of Duty ELITE premium members on Xbox Live, and on May 10, 2012 for the PlayStation 3. It was released for the Xbox 360 on May 22, 2012. It takes place in a cement factory in South Korea.
Unlike in many other previous Call of Duty maps, the vehicles in this map cannot be blown up, nor can their windows be broken. There are however, several gas tanks that will explode when shot.
In Survival Mode, the player(s) start with a Model 1887, a Five Seven, a Self Revive, and Extreme Conditioning, but no Frag Grenades or Flashbangs. The hostiles include Bomb Squads, Suicide Bombers, Little Birds, and Juggernauts.
The picture from the Call of Duty ELITE content calendar.
Another map of Foundation.